Movie video camera, apparatus for reproducing movie video signal, method of recording movie video signal, and method of reproducing same

Abstract

A blur-free printed image having a high vertical resolution is obtained from a signal obtained by photography using a movie video camera. Video signals of first and second fields are outputted by a CCD every 1/60 of a second. Ordinarily, these video signals are selected by a multiplexer in such a manner that the first and second fields are outputted alternately every 1/60 of a second. At a prescribed point in time, video signals of first and second fields obtained by simultaneous photography are outputted by the multiplexer. In this case a PI signal is added onto the video signals in a circuit for adding on synchronizing signals and the PI signal, and the resulting video signals are then recorded on a video tape. When the video signals are printed, the PI signal is detected and video signals of first and second fields obtained by simultaneous photography are recognized based upon the PI signal. The printed image is obtained from these video signals.

What is claimed is: 
     
       1. A movie video camera comprising: a solid-state electronic image sensing device having a first light-receiving section for outputting a video signal of a first field and a second light-receiving section for outputting a video signal of a second field;   means for controlling said solid-state electronic image sensing device so as to repeat, a prescribed number of times, movie video-signal output processing in which a video signal of a first field and a video signal of a second field are outputted by exposing said first light-receiving section and said second light-receiving section at different timings, and execute movie/still video-signal output processing in which a video signal of a first field and a video signal of a second field are outputted in order by exposing said first light-receiving section and said second light-receiving section at the same timing a single time after said movie video-signal output processing has been repeated the prescribed number of times;   identification code generating means for generating and outputting codes for identifying the video signals of the first and second fields outputted from said solid-state image sensing device by said movie/still video-signal output processing; and   recording means for recording, on a recording medium, the video signals outputted by said solid-state image sensing device and the identification codes outputted by said identification code generating means.   
     
     
       2. An apparatus for reproducing a movie video signal, comprising: reading means for reading video signals and codes from a recording medium, wherein a video signal of a first field and a video signal of a second field are recorded on said recording medium repeatedly a prescribed number of times, video signals of first and second fields being obtained by exposing, at different timings, a first light-receiving section, which outputs a video signal of a first field, and a second light-receiving section, which outputs a video signal of a second field, of a solid-state electronic image sensing device, a video signal of a first field and a video signal of a second field, which are obtained by exposing said first light-receiving section and said second light-receiving section at the same timing a single time after the recording performed the prescribed number of times, are recorded on the recording medium, and codes for identifying the video signals of the first and second fields obtained by the simultaneous exposure are recorded on said recording medium, said reading means reading these video signals and these codes from the recording medium;   reproducing means for reproducing the video signals read by said reading means;   identification-code extracting means for extracting the identification codes read by said reading means; and   video-signal extracting means for extracting and outputting, based upon the identification codes extracted by said reading means, the video signals of simultaneous exposure read by said reading means.   
     
     
       3. A method of recording a movie video signal, comprising the steps of: controlling a solid-state electronic image sensing device, which has a first light-receiving section for outputting a video signal of a first field and a second light-receiving section for outputting a video signal of a second field, so as to repeat, a prescribed number of times, movie video-signal output processing in which a video signal of a first field and a video signal of a second field are outputted in order by exposing said first light-receiving section and said second light-receiving section of said solid-state electronic image sensing device at different timings, and execute movie/still video-signal output processing in which a video signal of a first field and a video signal of a second field are outputted in order by exposing said first light-receiving section and said second light-receiving section at the same timing a single time after said movie video-signal output processing has been repeated the prescribed number of times;   generating codes for identifying the video signals obtained by the simultaneous exposure; and   recording, on a recording medium, the video signals outputted by said solid-state image sensing device and the generated identification codes.   
     
     
       4. A method of reproducing a movie video signal, comprising the steps of: reading video signals and codes from a recording medium, wherein a video signal of a first field and a video signal of a second field are recorded on the recording medium repeatedly a prescribed number of times, video signals of first and second fields being obtained by exposing, at different timings, a first light-receiving section, which outputs a video signal of a first field, and a second light-receiving section, which outputs a video signal of a second field, of a solid-state electronic image sensing device, a video signal of a first field and a video signal of a second field, which are obtained by exposing said first light-receiving section and said second light-receiving section at the same timing a single time after the recording performed the prescribed number of times, are recorded on said recording medium, and codes for identifying the video signals of the first and second fields obtained by the simultaneous exposure are recorded on said recording medium, these video signals and these codes being read from said recording medium;   reproducing the video signals that have been read;   extracting the identification codes that have been read; and   extracting and outputting, based upon the identification codes that have been extracted, the video signals of simultaneous exposure that have been read.